JPH09267947A - Paper money transfer device for paper money identifying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure high speed transfer of paper money to be identified and prevent waving of paper money which is being transferred in the orthogonal direction to the transfer direction. SOLUTION: A paper money transfer device consists of a drum 11 for transfer, a group of a first suppress roller 12, a second suppress roller 13, and a third suppress roller 14, a paper money introduction part 15, and a drive mechanism 16 which rotates and drives the drum 11 for transfer. The drum 11 for transfer consists of a rotary shaft and six disclike support drums arranged on the rotary shaft, and the disclike support drum consists of a support drum main body and a belt member which forms an outer peripheral part of the support drum main body and is made of synthetic rubber. Moreover, a surface of the belt member is polished, and it is adjusted so that the rotary shaft is positioned at the center of the disclike support drum properly. Rotation force of an electric motor 26 is transmitted to the rotary shaft through gears 27, 28, 29, 30 to rotate the drum 11 for transfer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill validator,
The present invention relates to a bill transfer device for a bill validator, which is used for quickly transporting a bill to be identified through an identification sensor or a group of sensors to perform an identification operation.

[0002]

2. Description of the Related Art Most of the conventional bill validators employ a bill transport device using an endless belt. This includes a plurality of endless belts arranged in parallel, a guide plate arranged so that the upper surface of the endless belt on the carrier side coincides with the upper surface, and a plurality of endless belts arranged facing each other on the upper surface of the endless belt on the carrier side. It is composed of a pressing roller and a drive mechanism of the endless belt, and a bill identifying sensor or a sensor group is arranged in that portion by cutting out a part of the position where the guide plate is arranged. .

Therefore, the bill to be identified is inserted between the carrier side of the endless belt and the holding roller and is transferred in the moving direction of the carrier side along with the transfer operation of the endless belt. Since the guide plate is arranged between the plurality of endless belts and is naturally in a fixed state, during the transfer operation of the endless belts, friction is generated between the identification target banknote transferred along with the endless belt and the guide plate. Due to the resistance caused by, the speedier transfer must be difficult.

Therefore, in order to solve this problem, a drum type bill transfer device has been developed and provided. this is,
As shown in FIG. 6, a rotary shaft 1, a plurality of disc-shaped supporting drums 2, 2, ... Connected in parallel to the rotating shaft 1, and a recess formed on the outer periphery of the disc-shaped supporting drums 2, 2 ,. The transfer drum 4 is constituted by the rubber ring 3 fitted in the groove.
, A pressing roller (not shown) is brought into face-to-face contact with the outer circumference of each disc-shaped supporting drum 2, and a rotary drive mechanism is connected to the rotary shaft 1 of the transfer drum 4.

Therefore, when the bill to be identified M is inserted between the transfer drum 4 and the holding roller and detected by a sensor (not shown), the rotary drive mechanism operates and the transfer drum 4 is moved to a predetermined position. The bills M are rotated in the direction, and the bill M is transported. At this time, in this type of banknote transfer device, it is not necessary to insert a stationary member such as a guide plate between the disc-shaped supporting drums 2 and 2, and therefore such a member is naturally not included. It means that there is no member that causes friction between the bill M and its movement. Therefore, the rotational speed of the transfer drum 4 can be increased to facilitate the speedy transfer of the bills M to be identified.

However, the above-mentioned conventional drum type banknote transfer device is one in which the groove is formed on the outer circumference of the disc-shaped supporting drums 2, 2, ... And the rubber ring 3 is fitted therein.
At the time of transferring the banknote M to be identified, the transfer drum 4 is substantially in line contact with the banknote M, so that it becomes wavy in a direction orthogonal to the traveling direction, as shown in FIG. Therefore, there is a problem that the distance between the sensor groups such as the front and back optical sensors S1 and S2 and the magnetic sensor S3 and the detection surface of the bill M cannot be kept constant, and as a result, accurate detection data cannot be obtained. This is a problem that appears remarkably when a sensor whose sensitivity greatly changes with distance is used.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the conventional drum type bill validator, enables the bills to be identified to be transported in a speedy manner, and the bills being transported. It is an object of the present invention to provide a banknote transfer device for a banknote validator that does not cause waviness in the transfer direction as well as in the direction orthogonal to the transfer direction.

[0008]

SUMMARY OF THE INVENTION The present invention is a transfer drum having a flat outer circumference and at least an outer circumference made of a member having a large friction coefficient. A transfer drum that is rotatably arranged with the shaft as a rotation axis, and a pressing roller that faces the outer circumference of the transfer drum, and inserts the identification target bill inserted between the transfer drum and the transfer target drum into the transfer drum. A holding roller arranged so as to be in close contact with the outer circumference, and the transfer drum for transferring the bill to be identified inserted between the transfer drum and the holding roller in the rotational direction as the transfer drum rotates. It is a bill transfer device for a bill validator constituted by a rotation drive mechanism for rotating.

Therefore, according to the present invention, when the bill to be identified is inserted between the transfer drum and the holding roller, the bill is held in close contact with the outer periphery of the holding drum by the holding roller and the bill of the transferring drum is held. It will be transferred in the direction of rotation. At this time, the outer periphery of the transfer drum is flat (here, flat means that it is flat in a direction parallel to the axial direction. Of course, in the circumferential direction, an accurate arc surface centered on the rotation axis is formed. Is configured), so
Banknotes that are in close contact therewith do not undulate in the direction orthogonal to the traveling direction and maintain a flat state (which also has the same meaning as the above-mentioned flat state). Therefore, the distance between each sensor arranged so as to face the banknote and the detection surface of the banknote can be kept constant, and an accurate detection operation is guaranteed.

Further, since the transfer drum has a perfect circle when viewed from the end face and is rotatably arranged with its central axis as a rotation axis, swaying of the banknote during transfer due to eccentricity occurs. Of course, even in this aspect, the constantness of the distance between the sensor and the bill detection surface is maintained, and an accurate detection operation is guaranteed.

Further, this bill transfer device is a drum type, and there is no member that does not move with the bill, such as a guide plate, which is in contact with the bill, and at least the outer peripheral portion of the transfer drum is Since it is composed of a member having a large friction coefficient, if the rotational speed of the transfer drum is increased, the banknotes move following the movement of the banknotes, and high-speed transfer can be realized.

By the way, in the above-described bill transfer device for the bill validator, the transfer drum may be entirely constructed by using, for example, plastic having a large friction coefficient. In this case, if an appropriate material can be selected, there is an advantage that it can be composed of a single member. However, it may not always be possible to find a good material in terms of strength, coefficient of friction, and cost. In that case, the following configuration is appropriate. For example, the transfer drum is composed of a rotary shaft, a drum main body arranged on the rotary shaft, and a member having the large coefficient of friction arranged on the outer peripheral portion thereof, and a belt member made of synthetic rubber as the member having the large coefficient of friction. When adopting, the drum body is made of a suitable plastic material etc. to form a solid skeleton structure of the transfer drum, and the slip between the drum and the bill in contact with the outer periphery of the drum is reduced to make the transfer faster. It can be realized.

Further, the transfer drum is a rotary shaft and a plurality of disc-shaped supporting drums connected in parallel to the rotating shaft, and is composed as a member having a large friction coefficient on the outer peripheral portion of the supporting drum body. A plurality of disc-shaped supporting drums formed by arranging rubber belt members may be used.

In the case of such a configuration, it becomes possible to arrange sensors between the plurality of disc-shaped supporting drums, so that the bill to be identified which is being transferred is not only from the outside but also from the inside. It becomes detectable. However, since the front and back detection surfaces can be detected at the same time, the identification accuracy can be improved.

Furthermore, when the main body of the transfer drum is composed of the drum main body and a belt member made of synthetic rubber which is the outer peripheral portion thereof, and when the main body of the transfer drum is the supporting drum main body and the synthetic rubber which is the outer peripheral portion thereof. In the case of a plurality of disc-shaped supporting drums configured with a belt member made of, the outer surface of the belt member made of synthetic rubber is polished, and the transfer drum has a perfect circle when viewed from the end face, And if the rotation axis is accurately positioned on the central axis, there is no sway in the circumferential direction of the bill due to eccentricity when the bill to be identified is transferred as described above, and the sensor and the bill Since the distance from the discriminating surface can be kept constant, an accurate detection operation is guaranteed.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail based on examples with reference to the drawings. 1 to 4
Shows Example 1 of the present invention.

As shown in FIGS. 1 to 3, a bill transfer device for a bill validator according to the first embodiment includes first, second, and third holding roller groups that come into contact with the transfer drum 11 and its outer periphery. 1
2, 13, 14, a bill introducing unit 15, and a drive mechanism 16 for rotationally driving the transfer drum 11.

As shown in FIGS. 2 and 4, the transfer drum 11 comprises a rotating shaft 17 and six disc-shaped supporting drums 18, 18, ... Which are arranged parallel to each other. In addition, the disc-shaped supporting drum 18 is particularly configured as shown in FIG.
As shown in FIG. 5, the support drum main body 19 and the belt member 20 made of synthetic rubber and forming the outer peripheral portion of the main body. The surface of the belt member 20 is polished so that the rotating shaft 17 is correctly positioned at the center of the disc-shaped supporting drum 18.

The first pressing roller group 12 is composed of six pressing rollers 21, 21 ... According to the number of disc-shaped supporting drums 18, 18 ... As shown in FIG. 3, the pressing roller 21 is positioned directly above the transfer drum 11, and each pressing roller 21 applies a pressing force toward the outer peripheral direction of each disc-shaped supporting drum 18 by a spring (not shown). It is attached. Similarly, the second holding roller group 13 is also composed of six holding rollers 22 and 22 and is located at a position slightly advanced in the rotation direction of the transfer drum 11 from the first holding roller group 12. In addition, each pressing roller 22 is
A pressing force is applied to each disc-shaped supporting drum 18 toward the outer peripheral direction. Similarly, the third pressing roller group 14 is also composed of six pressing rollers 23, 23 ..., and advances in the rotational direction of the transfer drum 11 by about 90 degrees when viewed from the first pressing roller group 12. In addition, each pressing roller 23 is provided with a pressing force toward the outer peripheral direction of each disc-shaped supporting drum 18 by a spring (not shown).

As shown in FIG. 1, the bill introducing unit 15 is composed of a lower introducing plate 24 and an upper introducing plate 25. When a bill M is inserted between the lower introducing plate 24 and the upper introducing plate 25, the transfer drum 1 is naturally driven.
The bill M is guided between the outer circumference of the first holding roller group 12 and the first holding roller group 12.

As shown in FIGS. 1 and 2, the drive mechanism 16 includes an electric motor 26, a gear 27 fixed to the output shaft thereof, a gear 28 fixed to the rotary shaft 17 of the transfer drum 11, Large and small gears 29 arranged on the shaft in the middle,
And the rotational force of the electric motor 26 includes a gear 27 of the output shaft thereof and large and small gears 29, 30 arranged in the middle.
And the rotary shaft 1 of the transfer drum 11 via the gear 28.
7 are engaged with each other so as to be transmitted to No. 7.

Therefore, according to the first embodiment, when the bill M to be discriminated is placed on the lower introduction plate 24 of the bill introduction unit 15 and slid into it, the bill M is recognized by the outer periphery of the transfer drum 11 and the first holding member. It will be inserted between the roller group 12. More specifically, the bill M is transferred to the transfer drum 11
Are inserted between the outer surface of the belt member 20 that forms the outer peripheral portion of the disc-shaped supporting drums 18, 18 that form the first holding roller group 21, and the holding rollers 21, 21 that form the first holding roller group 12. Becomes

When the bill M is inserted in this way, it is detected by a sensor (not shown), and the electric motor 26 of the drive mechanism 16 is rotated, and the electric motor 26 of the drive mechanism 16 is rotated.
It is transmitted to the rotary shaft 17 via 9, 30, and 28, and the transfer drum 11 is rotated in the transfer direction, that is, in the clockwise direction in FIG. In this way, the banknotes M are to be speedily transferred from the left to the lower right in FIG.

In this embodiment, the transfer drum 11 comprises 6
The disc-shaped supporting drums 18, 18, ...
Since there is a slight gap between them, it is possible to install sensors in the meantime. For example, the sensors 31 and 32 in FIG. 2 and the sensor 33 in FIG. Therefore, if sensors are also installed outside like the sensors 34 and 35 in FIG. 2 and the sensor 36 and magnetic sensor 37 in FIG. 4, it is possible to detect the front and back detection surfaces of the bill M at the same time. .

Moreover, the outer peripheral portion of the disc-shaped supporting drum 18 of the transfer drum 11 has a belt member 20 having a flat outer surface.
Therefore, the target bill M does not undulate in the direction orthogonal to the traveling direction, and the transfer drum 1
Since the center of rotation of 1 is accurately determined, the target bill M does not sway due to eccentricity. Therefore, the front and back sensors 31, 32, 33, 34, 35,
The distance between the 36 and the magnetic sensor 37 and the front and back detection surfaces of the bill M is always kept constant, and accurate detection is guaranteed.

More specifically, referring to FIG. 4, the distance L1 between the sensor 33 and the inner surface of the bill M, the distance L2 between the sensor 36 and the front surface of the bill M, and the magnetic sensor 37 and the front surface of the bill M are described. The distance L3 is always kept constant for the above-mentioned reason, and therefore, even if the sensitivity of these sensors significantly differs depending on the distance to the object to be detected, an accurate detection result can be secured. It is a thing.

Further, this bill transfer device is provided with a transfer drum 1
, Which are in contact with the banknote M such as a guide plate, between the disc-shaped supporting drums 18, 18 ... 18,
Since the outer peripheral portion of 18 is constituted by the belt member 20 made of synthetic rubber having a large coefficient of friction, the bill M moves following the movement even if the rotation speed of the transfer drum 11 is increased, and the bill M moves at high speed. Can be realized.

FIG. 5 shows a second embodiment of the present invention. In the second embodiment, a part of the transfer drum 11 of the first embodiment and the first, second and third restraining roller groups 12, 13 are shown. , 14 are partly modified, and other points are exactly the same. Therefore, the same parts are designated by the same reference numerals.

Only different parts will be described. That is, the transfer drum 40 includes a rotating shaft 41, two disc-shaped supporting drums 42 and 42 arranged on the rotating shaft 41, and one short cylindrical supporting drum 4.
3, the short cylindrical supporting drum 43 is arranged at the center, and the disc supporting drums 42 are arranged with a slight gap between both sides thereof. The disc-shaped supporting drum 42 is composed of a supporting drum main body and a belt member made of synthetic rubber which constitutes the outer peripheral portion thereof. The short cylindrical support drum 43 is also composed of a support drum main body and a belt member made of synthetic rubber which constitutes the outer peripheral portion thereof.

The rotary shaft 41 is replaced by disc-shaped supporting drums 42, 42.
Further, the precise positioning at the center of the short cylindrical supporting drum 43, the polishing of the surface of the belt member to make it flat, and the like are the same as in the first embodiment.

The first holding roller group 44 includes short holding rollers 45, 45 and short cylindrical holding drums 43 corresponding to the disc-shaped supporting drums 42, 42 constituting the transfer drum 40. Corresponding long type restraining roller 46
And is installed at the same position as the first pressing roller group 12 of the first embodiment. The point that the pressing force is applied by the spring is also the same. The second restraining roller group 47
Is composed of short type holding rollers 48 and 48 and a long type holding roller 49, and is installed at the same position as the second holding roller group 13 of the first embodiment. The point that the pressing force is applied by the spring is also the same. Similarly, the third holding roller group 50 is composed of short type holding rollers 51, 51 and a long type holding roller 52, and is installed at the same position as the third holding roller group 14 of the first embodiment. It is a thing. The point that the pressing force is applied by the spring is also the same.

However, when a bill is transferred by this bill transfer device, the corrugation in the direction orthogonal to the traveling direction of the bill is
It is less likely to occur, and in that respect, the detection operation by the sensor can be made more reliable. The bill transfer speed can also be higher.

[0033]

According to the bill transfer device for the bill validator of the present invention, the bills can be transferred at a high speed, and at that time, the bills are not corrugated in the direction orthogonal to the traveling direction. The distance between the sensor and the surface of the bill can be kept constant. Therefore, an accurate detection operation can be ensured even if a sensor in which the sensitivity significantly changes depending on the distance is used. Since the center of rotation of the transfer drum is accurately determined, swaying due to eccentricity does not occur in the banknotes being transferred, so the distance from the sensor can be kept constant and accurate detection operations can be secured. It will be possible.

By the way, in the above-described bill transfer device for the bill validator, the transfer drum may be entirely made of a material having a large friction coefficient, for example, plastic. In this case, it is appropriate. There is an advantage that a single member can be used if various materials can be selected.

Further, the transfer drum is composed of a rotary shaft, a drum main body arranged on the rotary shaft, and a member having the large coefficient of friction arranged on the outer peripheral portion thereof. The member having the large coefficient of friction is made of synthetic rubber. If a belt member can be adopted and configured in this way, the drum body is made of a suitable plastic material or the like to form a solid skeleton structure of the transfer drum, and the belt body is in contact with the bill in contact with the outer periphery thereof. It is possible to reduce the slippage and realize a faster transfer.

Further, the transfer drum is a rotary shaft and a plurality of disc-shaped supporting drums arranged in parallel with the rotating shaft, and is composed as a member having a large friction coefficient on the outer peripheral portion of the supporting drum body. It can also be configured with a plurality of disc-shaped supporting drums formed by arranging rubber belt members. In this case, sensors can be arranged between the plurality of disc-shaped supporting drums. Therefore, it becomes possible to simultaneously detect the bills to be identified which are being transferred, not only from the outside but also from the inside. However, since the front and back detection surfaces can be detected at the same time, the identification accuracy can be improved.

Furthermore, when the main body of the transfer drum is composed of the drum body and the belt member made of synthetic rubber which is the outer peripheral portion thereof, and the main body of the transfer drum is the supporting drum body and the synthetic rubber which is the outer peripheral portion thereof. In the case of a plurality of disc-shaped supporting drums configured with a belt member made of, the outer surface of the belt member made of synthetic rubber is polished, and the transfer drum has a perfect circle when viewed from the end face, And if the rotation axis is accurately positioned on the central axis, there is no sway in the circumferential direction of the bill due to eccentricity when the bill to be identified is transferred as described above, and the sensor and the bill Since the distance from the discriminating surface can be kept constant, an accurate detection operation is guaranteed.

[Brief description of drawings]

FIG. 1 is a side view illustrating a bill transfer device for a bill validator according to a first embodiment.

FIG. 2 is an explanatory plan view of the bill transfer device for the bill validator of the first embodiment.

FIG. 3 is a transfer drum according to the first embodiment and first, second and third drums.
A side explanatory view showing a state where a bill is inserted between the pressing roller groups.

FIG. 4 is a partially cutaway explanatory view showing a contact relationship between a transfer drum and a bill according to the first embodiment.

FIG. 5 is an explanatory plan view of the bill transfer device for the bill validator of the second embodiment.

FIG. 6 is an explanatory view showing a contact relationship between a transfer drum and a bill in a conventional example.

[Explanation of symbols]

11, 40 Transfer drum 12, 44 First holding roller group 13, 47 Second holding roller group 14, 50 Third holding roller group 15 Banknote introducing unit 16 Drive mechanism 17, 41 Rotating shaft 18, 42 Disc Support drum 19 support drum main body 20 belt members 21, 22, 23, 45, 46, 48, 49, 51, 5
2 Holding roller 24 Lower introduction plate 25 Upper introduction plate 26 Electric motor 27, 28, 29, 30 Gear 31, 32, 33, 34, 35, 36 Sensor 37 Magnetic sensor 43 Short cylindrical support drum L1, L2, L3 Distance Banknotes to be identified

Claims (4)

[Claims] 1. A transfer drum having a flat outer periphery and at least an outer peripheral portion formed of a member having a large friction coefficient, forming a perfect circle when viewed from an end face, and being rotatable about its central axis as a rotation axis. A holding roller arranged so as to face the outer circumference of the transfer drum and the arranged transfer drum, and the identification target bill inserted between the transfer drum and the outer circumference of the transfer drum. A roller, and a rotation drive mechanism that rotates the transfer drum so as to transfer the banknotes to be identified inserted between the transfer drum and the holding roller in the rotational direction as the transfer drum rotates. A bill transfer device for a bill validator configured. 2. The transfer drum comprises a rotary shaft, a drum main body arranged on the rotary shaft, and a member having a large coefficient of friction arranged on an outer peripheral portion of the rotating shaft. The member having a large coefficient of friction is made of synthetic rubber. The banknote transfer device for the banknote validator according to claim 1, wherein the belt member is used. 3. The transfer drum is a rotary shaft and a plurality of disc-shaped supporting drums connected in parallel to the rotary shaft,
2. A bill transfer device for a bill validator according to claim 1, further comprising a plurality of disc-shaped support drums each having a belt member made of synthetic rubber arranged as a member having a large friction coefficient on an outer peripheral portion of the support drum main body. . 4. The belt member made of synthetic rubber is polished so that the transfer drum has a perfect circle when viewed from the end face, and the rotary shaft is accurately positioned on the central axis thereof. Bill transfer device for the bill validator.